1. In an obvious and provable manner
   - demonstrably, incontrovertibly, irrefutably

See also: provable

• blackfoot daisy
• Blackfriar
• blackguard
• blackguardly
• blackhead
• blackheart
• blackheart cherry
• blacking
• blackish
• blackish-brown
• blackish-gray
• blackish-grey
• blackish-red
• blackjack
• blackjack oak
• blacklead
• blackleg
• blacklist
• blackly
• blackmail
• blackmailer
• blackmouth bass
• blackness
• blackout
• blackpoll